API Overview

Base URL

https://api.visihub.app/api/v1/books

Resources

Receivables

Resource	Endpoints	Description
Accounts	List, Show	Chart of accounts (read-only)
Contacts	CRUD + Find-or-Create	Customers, vendors, and other parties
Invoices	CRUD + Post + Void + Lines	Accounts receivable invoices
Payments	Create, List, Show, Apply, Void	Customer payments
Reports	AR Aging	Financial reports

Payables

Resource	Endpoints	Description
Bills	CRUD + Post + Void	Vendor bills (accounts payable)
Vendor Payments	Create, List, Show, Apply, Void	Payments to vendors
Invoice Inbox	Upload, Extract, Convert	PDF invoice processing
Commitments	CRUD + Upsert + Match + Allocate	PO/expected cost matching

Common Patterns

Response Envelope

List endpoints return data (array) and page (pagination metadata):

{
  "data": [...],
  "page": { "limit": 25, "has_more": false, "next_cursor": null }
}

Single-resource endpoints return data (object):

{
  "data": { "id": 1, ... }
}

Money

All monetary values use integer cents to avoid floating-point precision issues:

Field	Example	Meaning
amount_cents: 50000	—	$500.00
tax_rate_bps: 875	—	8.75%

Dates

All dates use ISO 8601 format. Date-only fields use YYYY-MM-DD. Timestamps include timezone: 2026-03-12T15:30:00Z.

External IDs

Most resources support an external_id field for mapping to your own system. Use the by_external_id endpoint to look up resources by your ID:

GET /api/v1/books/contacts/by_external_id/your-id-here